Script that downloads files with Transmission and saves all peers in a sqlite3 database.

torrentDaemon.sh

#!/bin/bash

#author         : Raul Calvo Laorden (raulcalvolaorden@gmail.com)
#description    : Script that downloads files with Transmission and saves all peers in a sqlite3 database.
#date           : 2018-03-26
#usage          : bash torrentDaemon.sh [options]
#-----------------------------------------------------------------------------------------------------------

PCENTMAX=8  #8% max

function help(){
	echo -e "author        : Raul Calvo Laorden (raulcalvolaorden@gmail.com)"
	echo -e "description   : Script that downloads files with Transmission and saves all peers in a sqlite3 database."
	echo -e "usage         : bash torrentDaemon.sh [options]\n"

	echo -e "\nOptions: "
	echo -e "\t -a  \t --add       \t <hash>    \t Add hash to Transmission"
	echo -e "\t -aF \t --addFile   \t <file>    \t Add file to Transmission"
	echo -e "\t -d  \t --data      \t           \t Show ips and % of all files in Transmission"
	echo -e "\t -h  \t --help      \t           \t Show this message"
	echo -e "\t -i  \t --info      \t <name>    \t Show all data in DB of file with hash <hash>"
 	echo -e "\t -l  \t --list      \t           \t List all files in Transmission"
	echo -e "\t -r  \t --remove    \t <ID>      \t Remove file with id <ID> from Transmission"
	echo -e "\t -rA \t --removeAll \t           \t Remove all from Transmission"
	echo -e "\t -s  \t --start     \t           \t Start script"
	echo -e "\t -S  \t --stop      \t           \t Stop Transmission and kill script"
}

#remove all torrents -gt PCENTMAX and add it again
function checkMax(){
	oldIFS=$IFS
	IFS=$'\n'

	LIST=$(transmission-remote -l 2> /dev/null | grep -v -E "ID|Sum")

	for i in $LIST ; do
		ID=$(echo $i | awk '{print $1;}')
                NAME=$(echo $i | awk '{print $NF;}')
                PCENT=$(echo $i | awk '{print $2;}' | sed 's/%//') #eliminamos el %
                #STATUS=$(echo $i | awk '{print $(NF-1);}')

                if [ $PCENT != "n/a" ]; then

			if [ $PCENT -gt $PCENTMAX ]
			then
				HASH=$(transmission-remote -t $ID -i | grep Hash: | awk '{print $2}' )
				transmission-remote -t $ID -rad >> /dev/null #delete
				add $HASH
			fi
		fi
	done
}



#add hash to transmission download
function add(){
	transmission-remote -a magnet:?xt=urn:btih:$1 >> /dev/null
}

#add .torrent to transmission download
function addFile(){
	transmission-remote -a $1 >> /dev/null
}

#start the daemon in background 
function start(){
	if [ "$1" != "calling_myself" ]
	then
	   stop
 	   "$0" "calling_myself" $@ &
 	   exit $?
	fi

	transmission-daemon -L 10000000 -l 100000 #-e logfile.log
	#-L --peerlimit-global limit -l --peerlimit-torrent limit

	sleep 3

	transmission-remote -u 1000 >> /dev/null
	transmission-remote -d 1000 >> /dev/null

	IFS=$'\n'

	LIST=$(transmission-remote -l 2> /dev/null | grep -v -E "ID|Sum")
        for i in $LIST ; do
                ID=$(echo $i | awk '{print $1;}')
                transmission-remote -t $ID -s >> /dev/null #start all torrents
        done

	checkMax
	CONTADOR=0

	while [ true ] ; do
		checkMax
		#List the specified torrent's peers
		IFS=$'\n'
		LIST=$(transmission-remote -l 2> /dev/null | grep -v -E "ID|Sum")

		for i in $LIST ; do
        		ID=$(echo $i | awk '{print $1;}')
			NAME=$(echo $i | awk '{print $NF;}')

			PCENT=$(echo $i | awk '{print $2;}' | sed 's/%//') #%

			if [ $PCENT != "n/a" ]; then
				#Creamos base de datos
				sqlite3 db-$NAME.sqlite "CREATE TABLE IF NOT EXISTS ips(ip TEXT NOT NULL PRIMARY KEY UNIQUE, flags TEXT, client TEXT);"
				sqlite3 db-$NAME.sqlite "CREATE TABLE IF NOT EXISTS date(ip TEXT NOT NULL, date DATE NOT NULL, PRIMARY KEY (ip, date));"

				#data to DB
				AUX=$(transmission-remote -t $ID -ip | grep -v "Address")
				for ip in $AUX ; do
		        		IP=$(echo $ip | awk '{print $1;}')
		        		DATE=$(date +"%a %b %d %R CET %G") #no sec
        				FLAGS=$(echo $ip | awk '{print $2;}')
        				CLIENT=$(echo $ip | awk '{print $6 $7 $8 $9;}')
        				sqlite3 db-$NAME.sqlite "INSERT OR REPLACE INTO ips VALUES ('$IP','$FLAGS', '$CLIENT');"
        				sqlite3 db-$NAME.sqlite "INSERT OR REPLACE INTO date VALUES ('$IP', '$DATE');"
				done

				#Reannounce torrent
				AUX=$((CONTADOR%100))
				if [ $AUX -eq 0 ]
	                	then
					transmission-remote -t $ID --reannounce >> /dev/null
				fi

			fi
		done
	sleep 1
	let "CONTADOR+=1"
	done
}

#stop the torrents in transmission, stop and kill transmission and kill the script in background 
function stop(){
        IFS=$'\n'

	#Stop torrents
	LIST=$(transmission-remote -l 2> /dev/null | grep -v -E "ID|Sum")
        for i in $LIST ; do
	        ID=$(echo $i | awk '{print $1;}')
		transmission-remote -t $ID -S 2> /dev/null
	done

	#ps aux | grep transmission-daemon
	LIST=$(ps aux | grep transmission-daemon)
        for i in $LIST ; do
                ID=$(echo $i | awk '{print $2;}')
                kill $ID 2> /dev/null
        done

	#kill scripts
	LIST=$(ps aux | grep calling_myself)
	for i in $LIST ; do
                ID=$(echo $i | awk '{print $2;}')
		kill $ID 2> /dev/null
    done
}

#remove and delete 1 torrent 
function remove(){
	transmission-remote -t $1 -rad >> /dev/null
}

#remove and delete  all torrents
function removeAll(){
        IFS=$'\n'
        LIST=$(transmission-remote -l 2> /dev/null | grep -v -E "ID|Sum")

	for i in $LIST ; do
                ID=$(echo $i | awk '{print $1;}')
                transmission-remote -t $ID -rad
        done
}

function list(){
	transmission-remote -l 2> /dev/null | grep -v -E "ID|Sum"
}

#Prints the number of IPs and the percentage downloaded for all files
function data(){
	IFS=$'\n'
	LIST=$(transmission-remote -l 2> /dev/null | grep -v -E "ID|Sum")


	for i in $LIST ; do
       	ID=$(echo $i | awk '{print $1;}')
	    NAME=$(echo $i | awk '{print $NF;}')

        if [ -n "$NAME" ]; then
	            PCENT=$(echo $i | awk '{print $2;}' | sed 's/%//') #eliminamos el %
	            LINEAS=$(sqlite3 db-$NAME.sqlite "SELECT * from ips;" | wc -l)
	            echo -e "Number of IPs $NAME = $LINEAS and $PCENT % "
        fi
	done
}

#Select * from ip
function info(){
	sqlite3 db-$1.sqlite "SELECT * from ips;"
}

#variables para cambiar de color del echo
RED=`tput setaf 1`
GREEN=`tput setaf 2`
NC=`tput sgr0`

MYARRAY=( "$@" ) 

for BUCLE in "$@"
do
    case $BUCLE in
        -a|--add) add ${MYARRAY[($BUCLE)+1]};;
        aF|--addFile) addFile ${MYARRAY[($BUCLE)+1]};;
        -s|--start) start $@ ;;
        -S|--stop) stop ; exit 0;;
        -r|--remove) remove ${MYARRAY[($BUCLE)+1]};;
        -rA|--removeAll) removeAll;;
        -d|--data) data;;
        -i|--info) info ${MYARRAY[($BUCLE)+1]};;
        -l|--list) list;;
        -h|--help) help;;
	esac
done
exit 0